Carla/source/modules/juce_audio_basics/mpe/juce_MPEMessages.h

/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2016 - ROLI Ltd.

   Permission is granted to use this software under the terms of the ISC license
   http://www.isc.org/downloads/software-support-policy/isc-license/

   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above
   copyright notice and this permission notice appear in all copies.

   THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD
   TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
   FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
   OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
   USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
   OF THIS SOFTWARE.

   -----------------------------------------------------------------------------

   To release a closed-source product which uses other parts of JUCE not
   licensed under the ISC terms, commercial licenses are available: visit
   www.juce.com for more information.

  ==============================================================================
*/

#ifndef JUCE_MPEMESSAGES_H_INCLUDED
#define JUCE_MPEMESSAGES_H_INCLUDED


//==============================================================================
/**
    This helper class contains the necessary helper functions to generate
    MIDI messages that are exclusive to MPE, such as defining
    MPE zones and setting per-note and master pitchbend ranges.
    You can then send them to your MPE device using
    MidiOutput::sendBlockOfMessagesNow.

    All other MPE messages like per-note pitchbend, pressure, and third
    dimension, are ordinary MIDI messages that should be created using the MidiMessage
    class instead. You just need to take care to send them to the appropriate
    per-note MIDI channel.

    Note: if you are working with an MPEZoneLayout object inside your app,
    you should not use the message sequences provided here. Instead, you should
    change the zone layout programmatically with the member functions provided in the
    MPEZoneLayout class itself. You should also make sure that the Expressive
    MIDI zone layout of your C++ code and of the MPE device are kept in sync.

    @see MidiMessage, MPEZoneLayout, MPEZone
*/
class JUCE_API  MPEMessages
{
public:
    /** Returns the sequence of MIDI messages that, if sent to an Expressive
        MIDI device, will define a new MPE zone.
    */
    static MidiBuffer addZone (MPEZone zone);

    /** Returns the sequence of MIDI messages that, if sent to an Expressive
        MIDI device, will change the per-note pitchbend range of an
        existing MPE zone.
    */
    static MidiBuffer perNotePitchbendRange (MPEZone zone);

    /** Returns the sequence of MIDI messages that, if sent to an Expressive
        MIDI device, will change the master pitchbend range of an
        existing MPE zone.
    */
    static MidiBuffer masterPitchbendRange (MPEZone zone);

    /** Returns the sequence of MIDI messages that, if sent to an Expressive
        MIDI device, will erase all currently defined MPE zones.
    */
    static MidiBuffer clearAllZones();

    /** Returns the sequence of MIDI messages that, if sent to an Expressive
        MIDI device, will reset the whole MPE zone layout of the
        device to the laoyut passed in. This will first clear all currently
        defined MPE zones, then add all zones contained in the
        passed-in zone layout, and set their per-note and master pitchbend
        ranges to their current values.
    */
    static MidiBuffer setZoneLayout (const MPEZoneLayout& layout);

    /** The RPN number used for MPE zone layout messages.

        Note: This number can change in later versions of MPE.

        Pitchbend range messages (both per-note and master) are instead sent
        on RPN 0 as in standard MIDI 1.0.
    */
    static const int zoneLayoutMessagesRpnNumber = 6;
};



#endif // JUCE_MPEMESSAGES_H_INCLUDED